Home / 5,305.02-7,960.86-2,018.40

Finding the Fourth Proportional to 5,305.02, 7,960.86 and 2,018.40

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Solution

The fourth proportional to 5,305.02, 7,960.86 and 2,018.40 is: 3,028.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.02 : 7,960.86 = 2,018.40 : x
  2. Step 2: Convert to fraction form
    5,305.02/7,960.86 = 2,018.40/x
  3. Step 3: Cross multiply
    5,305.02x = 7,960.86 × 2,018.40
  4. Step 4: Simplify right side
    5,305.02x = 16,068,199.82
  5. Step 5: Solve for x
    x = 16,068,199.82/5,305.02
  6. Step 6: Final answer
    x = 3,028.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.